90173980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4751}}^1$

素因数の和:4846

約数の個数: 48

約数和(自身を含む): 206769024

約数和(自身を除く): 116595044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 3796, 4745, 4751, 9490, 9502, 18980, 19004, 23755, 47510, 61763, 95020, 123526, 247052, 308815, 346823, 617630, 693646, 1235260, 1387292, 1734115, 3468230, 4508699, 6936460, 9017398, 18034796, 22543495, 45086990, 90173980]

約数ペア:

[(1, 90173980), (2, 45086990), (4, 22543495), (5, 18034796), (10, 9017398), (13, 6936460), (20, 4508699), (26, 3468230), (52, 1734115), (65, 1387292), (73, 1235260), (130, 693646), (146, 617630), (260, 346823), (292, 308815), (365, 247052), (730, 123526), (949, 95020), (1460, 61763), (1898, 47510), (3796, 23755), (4745, 19004), (4751, 18980), (9490, 9502)]